Emergency sirens will sound again throughout Hudson County this week — only louder this time.
The county’s Office of Emergency Management plans to re-test a new Alert Notification System on Wednesday in North Bergen, Guttenberg, Union City, West New York, Weehawken, Hoboken and Jersey City.
The drill will conclude Thursday with tests in Kearny, East Newark and Harrison, officials said.
The OEM designed the system to warn people of a hazardous condition that could require evacuations or other extreme measures.
Although the network of 28 countywide sirens were tested last month, officials said they weren’t loud enough.
The sirens — funded through a $795,000 Homeland Security grant — are near the New York Waterway ferry terminal in Weehawken, throughout Jersey City and Bayonne and in Hoboken near the PATH station, among other sites.